Failed miserably.

After lunch, I wash the dishes. Ask if soup is to be thrown away. Answer is yes. I finish my stuff and of course throw away the soup.

A few hours later, she asks the son if she wants to eat the soup. Then she finds out there is no more soup and proceeds to tell the boy "there's no soup because daddy threw it away".

I went balistic and wanted to clear it up that i did exactly as what has been agreed. Mistake. Don't argue with stupid. Of course we get nowhere, and I just show I'm now angry and butthurt. Mistake.

SO now i'm in my study thinkig wtf to do. How do I get myself out of the shitty situation and come out on top?